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Accounts Receivable Discount Programs (Tables)
12 Months Ended
Mar. 31, 2018
Accounts Receivable Discount Programs [Abstract]  
Schedule of accounts receivable discount programs
The following is a summary of the Company’s accounts receivable discount programs:

  
Years Ended March 31,
 
  
2018
  
2017
 
       
Receivables discounted
 
$
357,224,000
  
$
352,369,000
 
Weighted average days
  
340
   
342
 
Weighted average discount rate
  
3.3
%
  
2.9
%
Amount of discount as interest expense
 
$
11,182,000
  
$
9,724,000